Stop mechanism.



30. 743,961. PATENTED NOV. 10, 1903. W. A. WALKER.

STOP MECHANISM.

APPLIOATION FILED AUG. 6, 1903. I N0 MQDEL. 2 SHEETS-SHEET 1.

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Patented November 1o, 190s.

rrno STA'ijES' PATE WVILLIAM A. WALKER, OF BEVERLY, MASSACHUSETTS,ASSIGNOR OF ONE- HALF TO DANIEL A. KILHAM, OF BEVERLY, MASSACHUSETTS.

STOP MECHANISM.

SPECIFICATION forming part of Letters Patent No. 743,961, dated November10, 1903.

Application filed August 5 1903. Serial No. 188,308. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM A. WALKER, a citizen ofthe United States,and a resident of Beverly, in the county of Essex and State ofMassachusetts, haveiuven ted certain new and useful Improvements in StepMechanism, of which the following is a specification.

This invention relates to certain new and useful improvements in stopmechanism, and is applicable to any kinds of sheet-winding devices forpaper, cloth, or other textile or fibrous materials, as well as to paperslitting and rewinding machines of the kind shown and described in thepatent granted to In man and Jacques December 22, 1891, No. 465,575, orother similar slitting and rewinding machines.

In winding-machines it is frequently required to stop the machine assoon as the roll reaches its desired diameter, which usually requiresthe constant attendance and inspection of an operator. To obviate suchlabor, I provide the winding-machine with an automatic stop deviceactuated by the size of the roll on the Winding-shaft, by which themachine will be automatically stopped and the winding operation ceasedas soon as the roll reaches the desired diameter.

My invention is carried out as follows, ref erence being bad to theaccompanying drawings, wherein Figure l is an end elevation of awindingmachine provided with my improved automatic stopping device. Fig.2 is a plan view of Fig. 1, partly shown in section. Fig. 3 is a detailperspective View of the automatic stopping device, and Fig. 4. is anenlarged cross-section on the line t 4: shown in Fig. 3.

A A are the standards or frames of a winding-machine, secured at aproper distance apart, as is usual in winding, rewinding, or slittingmachines. In suitable bearings in said frames is journaled the rotarydrivingshaft 13, which is set in a rotary motion in any suitable orwell-known manner. In the drawings, Figs. 1 and 2, I have shown a loosepulley C journaled on one end of said shaft B and adapted-to be rotatedby belt-power, as usual. 'In connection with such loose pulley O, I haveshown a friction-clutch D longitudinally movable and splined on theshaft B and normally held in engagement with said pulley O by means of aspring E. Fig. 2.) Such device is only shown as an illustration, and Iwish to state that any Wellknown mechanism may be used forintermittently imparting a rotary motion to the shaft (Shown in B fromthe pulley G Without departing from the essence of my invention. I

On the driving-shaft B is secured a pulley F, from which leads a belt Gto a pulley H, preferably running loose on a shaft h and connected to afriction device I on the said shaft h, similar to that shown in theabove-mentioned patent, No. 465,575, to lumen and Jacques. The shaft his journaled in a bracket H, secured to the frame A, and to it isdetachably connected one end of the rollshaft K, on which the paper-rollL is wound.

the roll M tothe winder-roll L on the shaft K during the windingoperation, as usual.

A and A are suitable guide-rollers for guiding the strip 0 from the rollM to the roll L, as shown in Figs. 1 and 2.

The above is a description of an ordinary winding-machine, and I desireto state that I do not claim such a construction as my invention, and itis only shown and described for illustration of myautomatic stoppingdevice to be used in connection with a windingmachine or a paperslitting and rewinding machine, shown and described in the patenthereinabove mentioned, or similar machines.

My automatic stopping device is constructed, preferably, as follows:

To the bracket H or other part of the machine is secured a plate P, towhich is pivotally connected at p a lever P, to the inner end of whichis adjustably secured, preferably by means of a binder-screw p, arollguide preferably composed of a rod q, terminating in its outer endas a cross-bar or projection Q, adapted to contact with the roll L whenthe latter is wound to the limit of its desired diameter.

P in Fig. 3 is a side projection on the plate P, and said projection ispreferably provided with a notch or perforation p. (Shown in detail inFig. 4.) A similar notch or perforation p is made in the end of thelever P opposite to the notch or perforation p in the stationaryprojection P. In said notches or perforations is normally located thereduced ends of a releasing-pin R, which is normally held interlockedrelative to the stationary part P and pivoted lever P by the influenceof the yielding spring P (Shown in Fig. 3.) In connection with suchpivoted lever P and its roll-guide Q, I use a suitable intermediateconnecting mechanism to the clutch D, so as to cause the latter to beautomatically disconnected from the pulley O as soon as the roll Lduring the winding operation reaches the desired diametrical size bycontacting with the yielding guide Q on the pivoted lever P andconsequent release of the pin B.

Any suitable intermediate connecting mechanism and any suitable clutchon the driving-shaft may be used in connection with the automaticstopping device Without departing from the essence of my invention; butfor purposes of illustration I have shown in the drawings a weight S,suspended from the releasing-pin .R by means of a cord S. To said cordor to the pin R is loosely attached a cord S, preferably guided on apulley T, the end of which is connected to a lever U, pivoted at V andhaving its other end suitably connected to the grooved hub of the clutchD, as is usual in clutch-operating mechanism.

The operation is as follows: During the winding operation of the stripon the roll L the pin R is held by the spring P interlocked with thestationary projection P and lever P, as shown in the drawings. When thediameter of the roll L reaches the size desired, it causes the inner endof the lever P and its guide Q to be pushed backward by the roll Lsufficient to cause the pin R to be disengaged from its supports andcausing the nowreleased weight S to pull on the cord S, by which theclutch D is disengaged from the loose driving-pulley C, by itsconnection with the pivoted lever U, thereby causing the machine to beautomatically stopped.

This automatic stopping device may to advantage be used, if so desired,on slitting and rewinding machines of the kind shown in theabove-mentioned patent or other similar devices in which a slittingmechanism is used and a series of shafts upon which the slitted stripsare Wound.

By adjusting the position of the guide Q relative to the yielding leverP the device can be adjusted and set so as to automatically stop themachine according to any size of roll desired.

Having thus fully described the nature, construction, and operation ofmy invention, I Wish to secure by Letters Patent and claim 1. Incombination with a winding-machine, an automatic stopping device,consisting of a yielding lever, an adjustable roll-guide carried on oneend thereof, means engaging in the other end of the lever for normallyholding said lever and guide yieldingly in position during the runningof the machine, a releasing device and intermediate connecting mechanismto the drivingshaft for automatically stopping the machine by the saidguide contacting the roll when wound to the desired size as herein setforth.

2. In combination with a winding-machine, the herein-described automaticstopping device, consisting of a yielding guide, a locking device forholding the latter normally in position, a weight connected to saiddevice, and intermediate connecting mechanism from said weight to theclutch device on the driving-shaft, as and for the purpose set forth.

Theherein-describedautomaticstopping device, for winding-machines,consisting in combination, a roll, a pivoted spring-pressed lever, aguide adjustahly secured to said lever, a releasing device, a weightnormally suspended from the latter, and intermediate connectingmechanism between such weight, and the clutch-operating device, on thedriving-pulley, substantially as and for the purpose set forth.

t. In a paper-winding machine, a rotary shaft, upon which the materialis to be wound, in combination with an automatic stop device, adapted toautomatically stop the machine upon completion of the desired windingoperation, said stop device consisting of a yielding adjustable guide,adapted to contact the roll when wound to the required size, means fornormally holding said guide in position, a guide-releasing device, aweight attached to the latter, and intermediate connecting mechanismbetween said releasing device, and the clutch-operating device,substantially as specified.

In testimony whereof I have affixed my signature in presence of twoWitnesses.

WILLIAM A. WALKER.

Witnesses:

ALBAN ANDRI'IN, KARL A. ANDREN.

